{"id":"CVE-2026-116891","title":"SemanticMediaWiki 4.2.0 before 7.2.1 Reflected XSS via Special:FacetedSearch cstate","summary":"SemanticMediaWiki from 4.2.0 before 7.2.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject HTML via unescaped cstate parameters in Special:FacetedSearch. Attackers can craft URLs wit…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"SemanticMediaWiki","product":"SemanticMediaWiki","affected":["SemanticMediaWiki >= 4.2.0 < 7.2.1"],"published":"2026-10-27","updated":"2026-10-27","sourceUpdated":"2026-10-27T10:26:51.529Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116891","references":[{"url":"https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-9rcc-pmj8-ffhr","label":"GitHub Security Advisory (GHSA-9rcc-pmj8-ffhr)"},{"url":"https://www.vulncheck.com/advisories/semanticmediawiki-4.2.0-before-7.2.1-reflected-xss-via-special-facetedsearch-cstate","label":"VulnCheck Advisory: SemanticMediaWiki 4.2.0 before 7.2.1 Reflected XSS via Special:FacetedSearch cstate"}],"tags":["cve.org"],"ingestedAt":"2026-10-27T16:11:59.293Z","slug":"CVE-2026-116891","body":"## Overview\n\nSemanticMediaWiki from 4.2.0 before 7.2.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject HTML via unescaped cstate parameters in Special:FacetedSearch. Attackers can craft URLs with q, a matching crc32 csum or filtered=1, and cstate values that break out of hidden input attributes to execute script in victims' browsers.\n\n## Affected\n\n- `SemanticMediaWiki >= 4.2.0 < 7.2.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}